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Cooper Bussmann BU-245U-E User Manual

Wireless ethernet & device server
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  • Page 1 Read Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server Retain for Future User Manual Reference Version 1.7 3A1576Rev1.7...
  • Page 2 • Fax: (636) 527-1607 • E-mail: FuseTech@cooperindustries.com Thank you for your selection of the BU-245U-E Wireless Ethernet Modem. We trust it will give you many years of valuable service. ATTENTION! Incorrect termination of supply wires may cause internal damage and will void warranty.
  • Page 3 Like all industrial electronic products, Cooper Bussmann products can fail in a variety of modes due to misuse, age, or malfunction.
  • Page 4 © 2009 Cooper Bussmann. Cooper Bussmann is using a part of Free Software code under the GNU General Public License in operating the “BU-245U-E” product. This General Public License applies to most of the Free Software Foundation’s code and to any other program whose authors commit by using it. The Free Software is copyrighted by Free Software Foundation, Inc.

  • Page 5: Table Of Contents

    3.0 START-UP ........17 “Access Point” Start-up (BU-245U-E-G) ....17 “Access Point”...
  • Page 6 Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual CHAPTER 4 DIAGNOSTICS ......65 4.0 DIAGNOSTICS CHART .

  • Page 7: Chapter 1 Introduction

    See Appendix C for channels selections. The BU-245U-E unit also provides two serial connections as well as the Ethernet connections. It is possible to use all three data connections con- currently, allowing the BU-245U-E to act as a Device Server. Wireless connections can be made between serial devices and Ethernet devices. The BU-245U-E provides connection functionality between serial “Modbus RTU”...
  • Page 8 An Access Point could be used as a “Repeater” unit to connect two BU-245U-E Clients, which do not have direct reliable radio paths. There is no “Special” repeater module, any BU-245U-E can be a repeater and at the same time, can be connected to an Ethernet devices or on a Multiple Access Points can be set-up in a “mesh”...
  • Page 9 Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual Bridge vs. Router Each BU-245U-E is configured with an IP address for the Ethernet side, and another for the wireless side. A Bridge connects devices within the same Ethernet network - for example, extending an existing Ethernet LAN.

  • Page 10: Getting Started Quickly

    First, read Chapter 2, “Installation.” The BU-245U-E requires an antenna and a power supply. • Power the BU-245U-E and make an Ethernet connection to your PC (for further information on how to do this, refer to section 3.2 “ Configuring the Unit for the first time”)

  • Page 11: Chapter 2 Installation

    Europe (100mW EIRP). If using a BU-245U-E-A (5GHz) with a single antenna, 5 km (3 miles) can be achieved in USA, Canada and Australia (1W EIRP) and 3km in Europe (500mW EIRP) however more care is needed in selecting antennas, coax as well as radio paths need to be complete line of site (No obstruction what so ever).

  • Page 12: Dual Antenna Installations

    The net gain of the antenna/cable configuration is determined by adding the antenna gain and the cable loss. For example, if using the BU-245U-E-G a 10dBi antenna (7.8dBd) with 10 meters of Cellfoil (-5.6dB) has a net gain of 2.2dB (7.8dB – 5.6dB).

  • Page 13: Installation Tips

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual Installation tips Connections between the antenna and coaxial cable should be carefully taped to prevent ingress of moisture. Moisture ingress in the coaxial cable is a common cause for problems with radio systems, as it greatly increases the radio losses.

  • Page 14: Yagi Directional Antennas

    “ground/earth.” 2.2 Power Supply The BU-245U-E module can be powered from a 9 - 30Vdc power supply. The power supply should be rated at 1 Amp. The positive side of the supply must not be connected to earth. The supply negative is connected to the unit case internally.

  • Page 15: Serial Connections

    Direction RS485 Serial Port The RS485 port provides for communication between the BU-245U-E unit and its host device using a multi-drop cable. Up to 32 devices may be connected in each multi-drop network. As the RS485 communication medium is shared, only one of the units on the RS485 cable may send data at any one time. Thus, communication protocols based on the RS-485 standard require some type of arbitration.

  • Page 16: Discrete (Digital) Input/Output

    2.4 Discrete (Digital) Input/Output The BU-245U-E has one on-board discrete/digital I/O channel. This channel can act as either a discrete input or discrete output. It can be monitored, or set remotely, or alternatively used to output a communications alarm status.

  • Page 17: Chapter 3 Operation

    When an Access Point starts up it will scan all available channels from the selected groups and then select the quietest similar to the BU-245U-E-G. It will then go into a scan mode for 60 seconds where it listens for any Radar signals.

  • Page 18: Roaming Clients

    802.11b/g (2.4GHz) The BU-245U-E-G conforms to the IEEE 802.11b/g Wireless LAN specification. The BU-245U-E-G supports 13 x 20MHz, 12 x 10MHz and 13 x 5MHz radio channels in the 2412MHz to 2482MHz frequency range. Channels are country or region specific. Please check your local regulatory body for compliance and channel selection.
  • Page 19 Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual The 10M channels are also separated by 5MHz and overlap the adjacent channels by 5MHz forward and backward, i.e., Channel 41 will overlap with channel 42; channel 46 will overlap with channel 45 and 47.

  • Page 20: A (5Ghz)

    802.11a (5GHz) The BU-245U-E-A utilizes frequency bands within the range of 5.15GHz and 5.825GHz. This is broken into 4 distinct U-NII bands and each region (EU, US, AUS, NZ, etc) have their own power and operational constraints, see Appendix C for more details.

  • Page 21: Configuring The Unit For The First Time

    Method 1 - Change your computer settings so that the configuring PC is on the same network as the BU-245U-E with factory default settings. This is the preferred method and is much less complicated than the second method. You will need a “straight-through” Ethernet cable between the PC Ethernet port and the BU-245U-E.

  • Page 22: Method 1 - Set Pc To Same Network As Bu-245U-E

    Connect the Ethernet cable between unit and the PC configuring the module. • Set the Factory Default Switch to the SETUP position. This will always start the BU-245U-E with Ethernet IP address 192.168.0.1XX, subnet mask 255.255.255.0, gateway IP 192.168.0.1 and the radio disabled.

  • Page 23: Method 2 - Set Bu-245U-E Network Address To Match The Local Network

    Method 2 - Set BU-245U-E Network address to match the local network For this method you will need to determine what IP address, Gateway address, and netmask to assign to the BU-245U-E so that it appears on your network. Ask your system administrator if you don’t know the correct settings for your network. E.g.

  • Page 24: Quick Start Configuration

    Connections Tab -> LAN Settings->Proxy Server -> bypass proxy for local addresses. • Enter the IP address for the BU-245U-E into the Internet Explorer Address bar e.g. http://10.10.0.6 which is the IP address you temporarily configured with the ifconfig command.

  • Page 25: Network Configuration

    Configuration of WPA-Enterprise differs when the unit is configured as an Access point (Authenticator) or Client (Supplicant). If WDS interfaces are used, it is possible for one BU-245U-E to act as both an Authenticator and a Supplicant, however in this situation, only one set of user credentials can be entered for all Supplicants.

  • Page 26: Network Settings Webpage Fields

    For more information, refer to section 3.9 “DHCP Server Configuration”, Default is unchecked. MAC Address This is the unique hardware address of the BU-245U-E and is assigned in the Factory. The BU-245U-E has two MAC addresses, one for each interface (Ethernet and Wireless).

  • Page 27: Security Menu

    Encryption Keys 1 to 4 These are the keys used to encrypt radio data to protect data from unwanted eavesdroppers when WEP Encryption is selected. These keys should be the same for all BU-245U-E units in the same system. Authentication Mode =Open/Shared One of the four keys may be selected as the default key, and is used to encrypt transmitted messages from the configured unit.

  • Page 28: Wpa Enterprise - Supplicant Configuration

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual When WPA Encryption is selected, 128bit Encryption keys are internally generated based on the Passphrase and System Address (ESSID). The Passphrase must be between 8 and 63 characters in length, and the Passphrase must be the same for all BU-245U-E units in the same system.

  • Page 29: Normal Operation

    When a radio transmission is unsuccessful the BU-245U-E will automatically drop to the next lowest data rate and if subsequent transmissions are successful at the lower rate, the BU-245U-E will attempt to increase to the next highest rate. When a station connects to an access point the two devices negotiate a data rate based which is within configured range of radio data rates for both devices.
  • Page 30 BU-245U-E-G Radio Channels 1 to 13 (depending on country) may be configured at the Access Point. Refer Section 3.1. BU-245U-E -A Radio channels can be individually set (AP only – Client ignores the selection) or left in Auto (default) and then select the appropriate U-NII groups 1,2,3,4 each one having its own group of channels, Maximum Power and DFS selection.

  • Page 31: Channel Selection

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual Channel Selection BU-245U-E-G modem (2.4GHz 802.11b/g) channel selection is done by selecting one of 13 channels from the drop down “Channel” list. (Country Dependent) BU-245U-E-A modem (5GHz 802.11a) channel selection is shown below.

  • Page 32: Throughput And Repeaters

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual Throughput and Repeaters It should also be noted that if using repeaters to extend the range there will be a reduction in throughput for each repeater hop. The following table shows the drop in throughput for each hop and for each of the channel widths.

  • Page 33: Dhcp Client Configuration

    DHCP (Dynamic Host Configuration Protocol) allows DHCP Clients to automatically obtain their IP Address at start-up. This simplifies network administration, as there is no need to manually configure each device with a separate IP Address. The BU-245U-E is able to act as a DHCP client.

  • Page 34: Dhcp Server Configuration

    The BU-245U-E is able to act as a DHCP server, supplying IP addresses automatically to other DHCP Client devices. Note that the BU-245U-E units need to act in conjunction with their connected devices. If a connected device is a DHCP server, the local and remote BU-245U-E units can be configured as DHCP Clients and receive IP addresses from the server device.

  • Page 35: Spanning Tree Algorithm

    The BU-245U-E is configured with a Bridge Priority of 32768 by default. The intention is to reduce traffic that the BU-245U-E must handle, by placing it at the branch level in the network tree. As a branch, the BU-245U-E needs only pass traffic to devices that are its “leaves.”...

  • Page 36: Compatibility

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual 3.13 Compatibility 3 Address (Layer 3 Bridge) & 4 Address Mode What Addresses are in a wireless Ethernet data frame? There are two different Wi-Fi communication “modes”, 3 Address and 4 Address Modes. Each mode has a slightly different way that it addresses the data frames to other devices on the network.

  • Page 37: E Compatibility

    Notes: 1. Connection only if the BU-245U-E-G is configured with a virtual Station (Client) which in turn connects to the 240U-E Access Point. 2. Connection indication in the “connectivity” pages however it is not a true connection (see “3 Address & 4 Address Modes” above).
  • Page 38 Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual WDS bridge interfaces have the advantage that redundant paths are permitted when using the bridge Spanning Tree Protocol (see section 3.11 “Spanning Tree Algorithm”), thus behaving as a self-healing mesh network. Bridged networks are also not as configuration intensive as routed networks.

  • Page 39: Example - Extending Range Using Wds

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual Example – Extending Range Using WDS One of the most common uses for WDS is to extend the range of the wireless network using repeaters. The diagram above illustrates a simple example where the four Access Points are all at fixed locations (each of the Access Points could, of course, have one or more client/stations connected).

  • Page 40: Example - Roaming With Wds Access Points

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual Example - Roaming with WDS Access Points Another common use for WDS is extending the range across a large wireless network but allowing roaming connections between access points or being able to switch to the next Access Point when out of range of the previous Access Point.

  • Page 41: Example - Adding Redundancy

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual Example – Adding Redundancy In the example below, 4 x Access Points (A, B, C, & D) form a mesh network using only WDS bridge interfaces. Each of the Access Points may also have its own clients associated.
  • Page 42 Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual The configuration for Site A and B are shown below. In this example, Site B uses its primary access point to act as an access point for Virtual Stations on Site A and D, and uses a Virtual Station to act as a client to Site C. Site A uses two Virtual Stations to act as clients to Site B and to Site C.

  • Page 43: Example - Wds Routed Network

    • The third WDS entry specifies the WDS link to Site D. In the example, Site D is part of the same network structure as Site B; therefore does not require any entries in the Router IP and Subnet fields as the BU-245U-E automatically bridges this interface with the default wireless interface.

  • Page 44: Wds Connections

    169.254.0.2 as the gateway address (this is the WDS Router IP address that Site A has been configured with for its WDS link to Site B). So, this routing rule effectively tells the BU-245U-E that any traffic destined for the network 192.168.0.X should be forwarded to Site A via WDS link address 169.254.0.2.

  • Page 45: Routing Rules

    Access Point with destination IP address 169.254.109.x (where x is any host id) will be forwarded to the BU-245U-E at LAN B. Devices on LAN B & LAN C that needs to send messages back to LAN A will need to have their Gateway addresses directed to the BU-245U-E on their respected networks.

  • Page 46: Wireless Message Filtering

    3.16 Wireless Message Filtering When configured as a Bridge, the BU-245U-E will transmit all broadcast messages appearing at its wired Ethernet port. When the BU-245U-E is configured as a Router, this does not occur.

  • Page 47: Mac Address Filter Configuration

    When configuring a Whitelist it is important to add the Addresses of all devices connected to the BU-245U-E wired Ethernet port, that communicate over the wireless link. It is particularly important to add the Address of the configuration PC to the Whitelist. Failure to add this address will prevent the configuration PC from making any further changes to configuration.

  • Page 48: Ip Address Filter Configuration

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual Select “Blacklist” or “Whitelist” Blacklist will prevent all listed devices from accessing the module and using the radio link. Whitelist will allow devices with the MAC addresses listed to communicate with the module and utilize the radio link.

  • Page 49: Arp Filter Configuration

    The BU-245U-E can be used as a PPP (Point-to-Point Protocol) Server to connect the wireless system to serial devices via the RS232 or RS485 serial ports. PPP Server enables a network connection to the BU-245U-E over a serial cable. This is much like dial up internet. The maximum serial data rate is 115,200bps. Hardware or Software flow control may be selected.

  • Page 50: Serial Gateway (Server/Client/Multicast)

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual To configure Windows XP to establish a PPP connection to a BU-245U-E in SETUP mode, follow these steps: 1. On Network Connections in Windows XP, select Create a new connection.

  • Page 51: Modbus Tcp To Rtu Gateway

    There are software packages available (i.e., SerialIP Redirector by Tactical Software) that can create a virtual serial port on a PC. This virtual serial port can be configured to connect to a BU-245U-E serial port. Standard programs can then be used to access this serial port as if it were actually connected to the PC.

  • Page 52: Serial Menu

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual 3.18 Serial Menu RS232 / RS485 Serial Port Configuration RS232 Port Select the desired functionality. Select either PPP, Serial Gateway or Modbus TCP to RTU Data Rate The serial data rate desired. Serial data rates available range from 110bps to a maximum of 115,200bps.
  • Page 53 Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual RS232 / RS485 Serial Gateway Serial Gateway Mode Server - Module will wait for a connection to be initiated by a remote Client. Client - Module will automatically attempt to connect to the specified remote server.

  • Page 54: Multicast Pipe Manager

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual 3.19 Multicast Pipe Manager Previously it has been difficult to connect a single TCP device, i.e., a Scada / DCS system to multiple remote multicast serial devices. Multicast Pipe allows this type of connection.

  • Page 55: Digital Input/Output

    I/O to/from almost any combination of Modbus TCP or RTU devices. The layout of the BU-245U-E I/O Registers is summarized in the table below. Each register is internally saved as a 16 bit unsigned integer value. A Modbus transaction may access the entire 16 bit value of any register, or alternatively the most significant bit of a register may be accessed as a discrete value.
  • Page 56 An example of the Modbus functionality of the BU-245U-E is illustrated below. In this example the status of the onboard digital input at C will be reflected at the onboard digital output at B. Also, 8 single bit registers from Modbus serial device D will be transferred to A.
  • Page 57 Gateway is to route the message out the serial port to unit A. Since the BU-245U-E supports Modbus TCP Client and Server simultaneously, the Modbus TCP Server for unit B above could also be enabled. This would allow one (or more) external Modbus TCP Clients anywhere on the extended wired or wireless network to connect to unit B and monitor the status of the I/O registers –...

  • Page 58: Module Information Configuration

    Take care to remember this password if you change it as it will be needed to access the module in future. Device Name A text field if you wish to label the particular BU-245U-E. This is also the DNS name (hostname) of the device if you are using DNS.

  • Page 59: System Tools

    System Log File Shows an event log of the modules operation, used for diagnosing problems. Page can be saved and emailed to Cooper Bussmann if requested. “Clear System Log” will clear out the log file and start fresh. Read Configuration File This option will show the module configuration in XML format.
  • Page 60 Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual Connect to the web page of the module that will be performing the Iperf test, select “System Tools” link on the right hand side of the webpage and then select “TCP Throughput Test” and you will see the Screen as shown below.

  • Page 61: Remote Configuration

    Because a module configuration is viewed and changed in a web format (which uses TCP/IP protocol), you can view or change the configuration of a remote module via the wireless link, provided the remote module already have a wireless link established to the local BU-245U-E.

  • Page 62: Extending A Wired Network

    Access Point Configuration Connect straight through Ethernet cable between PC and BU-245U-E. Ensure configuration PC and BU-245U-E are setup to communicate on the same network Set dipswitch to SETUP mode. Power up unit, and wait for the OK LED to cease flashing.

  • Page 63: Connecting Two Separate Networks Together

    In this example, LAN A is connected to the internet via a router at IP address 192.168.0.1. Devices on LAN A that only require access to devices on LAN A and B, should have their gateway IP address set to the BU-245U-E Access Point as 192.168.0.200.

  • Page 64: Client Configuration

    Set the Ethernet IP address to 169.254.102.53, network mask 255.255.255.0 Set the Wireless IP address to 169.254.102.53, network mask 255.255.255.0 Click on button Save to Flash and Reset. Webpage will display that message indicating details are being written to flash. Wait for BU-245U-E to reboot before removing power.

  • Page 65: Chapter 4 Diagnostics

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual 4.0 Diagnostics Chart LED Indicator Condition GREEN RED Continuously RED At Power ON Fast Flash RED / GREEN Slow Flash RED / GREEN Radio RX GREEN flash Radio RX RED flash...

  • Page 66: Diagnostic Information Available

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual 4.1 Diagnostic Information Available Connectivity The Connectivity webpage displays connections and available networks. The “Connected Devices” section displays the radio channel, received signal strength, and radio data rate for each Client or Access Point by their MAC Address. The readings shown are based upon the last received data message from the Access Point or Client.

  • Page 67: Channel Survey

    4.2 Channel Survey The Cooper bussmann 802.11 Ethernet modem utilizes a half duplex radio channel for communications. At any given time, an Access Point and its associated clients occupy a radio channel. These radio channels, or frequencies, are license free and may contain interference from any number of other radio transmitters.
  • Page 68 Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual The third screen shot shows the average Channel utilization for each minute up to one hour. It will also give a running average for the total number of minutes up to 59 minutes.

  • Page 69: Custom Survey

    Percent Radio TX – Any transmitted messages from the radio to other devices. Percent Radio RX – Any DSSS or OFDM messages received by the radio (basically any Standard Wi-Fi data packets from either Cooper Bussmann or competitor radios).

  • Page 70: Statistics

    4.4 Statistics The Statistics webpage is used for advanced debugging of BU-245U-E. This webpage details the state of the BU-245U-E and performance information. This page is typically useful to Cooper Bussmann technical support personnel in diagnosing problems with the module.

  • Page 71: Internal Diagnostics Modbus Registers

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual 4.5 Internal Diagnostics Modbus Registers There are a number of internal diagnostic registers that can be accessed via Modbus TCP/RTU that will help with analyzing and diagnosing the radio network. To access these register the Modbus Server will need to be enabled and a Modbus Server address will need to be configured (See 3.20 “Modbus I/O Transfer”...
  • Page 72 Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual Statistic Register Module 4500 Both 4502 Both 4504 Both 4506 Both 4508 Both 4510 Both 4512 Both 4514 Both 4516 Both 4518 Both 4520 Both 4522 Both 4524 Both 4526...

  • Page 73: Testing Radio Paths

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual 4.6 Testing Radio Paths Connection and Signal Strength The general procedure for radio range testing a link is fairly simple. Configure two units to form a link using automatic radio rates. Install the Access Point at a fixed location.

  • Page 74: Utilities

    This command would be written as “ping 192.168.0.118” then <enter> to send the ping command. The PC will reply with an acknowledgement of your command and if your BU-245U-E is correctly configured your reply will look something like this. The screen shot below shows the response of the “ping –t 192.168.0.118” command.

  • Page 75: Ipconfig

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual ”Ipconfig” “ipconfig” can be used to show your current TCP/IP information, including your address, DNS server addresses, adapter type and so on. In the above example ipconfig was entered in the command prompt. The reply back shows the PC’s IP address, Subnet mask and the gateway it is connected to.

  • Page 76: Route

    Route is used for the Router function. This is where you are joining 2 different networks together via the BU-245U-E refer to Section 1.1 Normally the BU-245U-E will only accept one routing rule, by using the Default Gateway IP Address on the Main Network Page. If more than one routing rule is needed then a Routing Table is required, e.g.

  • Page 77: Chapter 5 Specifications

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual General EMC specification EN 300 683 Radio specification EN 300 328 Housing 114 x 140 x 30mm, 4.5 x 5.5 x 1.2 inch Terminal blocks Removable LED indication Module Status, Serial RX and TX,...

  • Page 78: Serial Ports

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual Serial Ports RS232 Port DB9 female DCE RS485 Port 2 pin terminal block Data rate (bit/sec) - 1200, 2400, 4800, 9600, 14400, configurable 19200, 38400, 57600, 76800, 115200 System Parameters...

  • Page 79: Appendixa Firmware Upgrade

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual A FIRMWARE UPGRADE PPENDIX Determine which firmware version is present in the module to be upgraded by viewing the index webpage of the module. Firmware versions 1.0.3 and later may be upgraded via the configuration web pages. This upgrade can be done locally with a PC connected directly to the module, or remotely over a working radio link.

  • Page 80: Appendix B Glossary

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual Acknowledgment. Access Point An access point connects wireless network stations (or clients) to other stations within the wireless network and also can serve as the point of interconnection between the wireless network and a wired network.
  • Page 81 Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual Encryption Key An alphanumeric (letters and/or numbers) series that enables data to be encrypted and then decrypted so it can be safely shared among members of a network. WEP uses an encryption key that automatically encrypts outgoing wireless data.
  • Page 82 Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual Receive Sensitivity The minimum signal strength required to pick up a signal. Higher bandwidth connections usually have less receive sensitivity than lower bandwidth connections. Router A device that forwards data from one WLAN or wired local area network to another.
  • Page 83 Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual TCP/IP The underlying technology behind the Internet and communications between computers in a network. The first part, TCP, is the transport part, which matches the size of the messages on either end and guarantees that the correct message has been received.

  • Page 84: Appendixc Channels

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual 802.11b/g Channel Frequency (MHz) North America 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 2472 2484 802.11b/g Turbo Channel Frequency (MHz) North America 2437 www.cooperbussmann.com/BussmannWirelessResources C CHANNELS...

  • Page 85: 802.11A - Maximum Radio Transmitter Power

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual 802.11a – Maximum Radio Transmitter Power Frequency Europe max TX Channel (MHz) Power (Master) 5180 23 dBm 5200 23 dBm 5220 23 dBm 5240 23 dBm 5260 20 dBm 5280...

  • Page 86: Appendix D 802.11A & Tx Power

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual U-NII Frequency EU & South Africa Band (MHz) No DFS 5150-5250 200mW 5250-5350 – 100mW 5470-5725 – 500mW 5725-5825 – All Power levels are shown as EIRP (Effective Isotropic Radiated Power)

  • Page 87: Appendixe External Iperf Test

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual PPENDIX XTERNAL PERF This Appendix shows how to set up and use the Iperf application to test the throughput of Ethernet Modems. Iperf is a tool used to measure the throughput and quality of a network link. Jperf is used in conjunction with Iperf and displays the Iperf data results graphically.
  • Page 88 Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual This time enter the Iperf command to start the client communication to the server. “Iperf –c <IP address of Server PC> -w 65535. See Figure 2 Figure 2 This will run a test over the Wi-Fi Link to the Server PC and report back results as seen in Figure 3.

  • Page 89: Jperf Application

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual JPerf Application Jperf is a graphical interface that runs over the top of Iperf. It will display a graph result from the Iperf test. To run Jperf open a CMD prompt and change to the “jperf-2.0.2: directory and run the “Jperf” application as shown in Figure 4. The CMD screen will disappear and the Jperf Screen will appear as seen in Figure 5.

  • Page 90: Appendixf Gnu Free Doc License

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual F GNU F LICENSE PPENDIX Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
  • Page 91 Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change.

  • Page 92: No Warranty

    Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein.
  • Page 93 Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual www.cooperbussmann.com/BussmannWirelessResources 3A1576Rev1.7...

  • Page 94: Customer Assistance

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